20–26 Feb 2022
Chateau Lake Louise
Canada/Mountain timezone

ATLAS measurements of CP violation and rare decay processes with beauty mesons

25 Feb 2022, 17:45
15m
Victoria (Chateau Lake Louise)

Victoria

Chateau Lake Louise

Speaker

Tomas Jakoubek (Weizmann Institute of Science (IL))

Description

The ATLAS experiment has performed measurements of B-meson rare decays proceeding via suppressed electroweak flavour changing neutral currents, and of mixing and CP violation in the neutral Bs meson system. This talk will focus on the latest results from the ATLAS collaboration, such as rare processes B0s → mu mu and B0 → mu mu, and CP violation in the B0s —> J/psi phi decays. In the latter, the Standard Model predicts the CP violating mixing phase, phi_s, to be very small and its SM value is very well constrained, while in many new physics models large phi_s values are expected. The latest measurements of phi_s and several other parameters describing the B0s —> J/psi phi decays will be reported.

Presentation materials